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Decyl glucoside surfactant Triton CG-110 does not significantly affect the environmental fate of glyphosate in the soil at environmentally relevant concentrations.
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-01-15 , DOI: 10.1016/j.jhazmat.2020.122111 Laura Carretta 1 , Alessandra Cardinali 1 , Roberta Masin 1 , Giuseppe Zanin 1 , Harald Cederlund 2
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-01-15 , DOI: 10.1016/j.jhazmat.2020.122111 Laura Carretta 1 , Alessandra Cardinali 1 , Roberta Masin 1 , Giuseppe Zanin 1 , Harald Cederlund 2
Affiliation
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Glyphosate is the most common herbicide worldwide, and its impact on the environment has increasingly been scrutinized. Glyphosate-based formulations can contain co-formulants, among which are surfactants. This study aimed to investigate whether the presence of an alkyl polyglucoside-based surfactant, Triton CG-110, affects the adsorption, leaching, and mineralisation of glyphosate in the soil. The experiments were conducted in two soils with different textures (sandy and clay) and in washed sand. Glyphosate and surfactant mixtures were applied at realistic field rates. Because of ponding and scarce leaching from the field soil, the leaching experiments were conducted only with washed sand. The results indicate a reduction of glyphosate adsorption in washed sand (from Kf = 13.5 to 3.99 μg1-1/n (ml)1/n g-1) and in sandy soil (from Kf = 165 to 90.8 μg1-1/ n (ml)1/n g-1) when using a Triton CG-110 concentration of 0.5 %, which corresponds to that of a spraying solution applied in the field, whereas adsorption in clay soil was unaffected. Triton CG-110 did not significantly affect glyphosate leaching in washed sand or mineralisation in any of the tested soils. The results indicate that Triton CG-110 is unlikely to significantly affect the environmental fate of glyphosate in the soil at environmentally relevant concentrations.
中文翻译：
癸基糖苷表面活性剂Triton CG-110在环境相关浓度下不会显着影响土壤中草甘膦的环境命运。
草甘膦是全世界最常见的除草剂，其对环境的影响也越来越受到关注。基于草甘膦的制剂可以包含共制剂，其中有表面活性剂。这项研究的目的是调查是否存在基于烷基葡糖苷的表面活性剂Triton CG-110是否影响草甘膦在土壤中的吸附，浸出和矿化。实验是在两种质地不同的土壤（沙土和粘土）和洗过的沙子中进行的。草甘膦和表面活性剂的混合物以实际的田间施用率施用。由于田间土壤的积水和稀疏浸出，仅用洗过的沙子进行浸出实验。结果表明，草甘膦在洗过的沙子（从Kf = 13.5降至3.99μg1-1/ n（ml）1 / n g-1）和在沙质土壤（从Kf = 165至90）中的吸附减少。当使用浓度为0.5％的Triton CG-110时，浓度为8μg1-1/ n（ml）1 / n g-1），相当于田间施用的喷洒溶液的浓度，而在粘土中的吸附不受影响。Triton CG-110不会显着影响草甘膦在洗过的沙子中的浸出或任何测试土壤中的矿化作用。结果表明，在与环境有关的浓度下，Triton CG-110不太可能显着影响土壤中草甘膦的环境命运。
更新日期：2020-01-15
中文翻译：
癸基糖苷表面活性剂Triton CG-110在环境相关浓度下不会显着影响土壤中草甘膦的环境命运。
草甘膦是全世界最常见的除草剂，其对环境的影响也越来越受到关注。基于草甘膦的制剂可以包含共制剂，其中有表面活性剂。这项研究的目的是调查是否存在基于烷基葡糖苷的表面活性剂Triton CG-110是否影响草甘膦在土壤中的吸附，浸出和矿化。实验是在两种质地不同的土壤（沙土和粘土）和洗过的沙子中进行的。草甘膦和表面活性剂的混合物以实际的田间施用率施用。由于田间土壤的积水和稀疏浸出，仅用洗过的沙子进行浸出实验。结果表明，草甘膦在洗过的沙子（从Kf = 13.5降至3.99μg1-1/ n（ml）1 / n g-1）和在沙质土壤（从Kf = 165至90）中的吸附减少。当使用浓度为0.5％的Triton CG-110时，浓度为8μg1-1/ n（ml）1 / n g-1），相当于田间施用的喷洒溶液的浓度，而在粘土中的吸附不受影响。Triton CG-110不会显着影响草甘膦在洗过的沙子中的浸出或任何测试土壤中的矿化作用。结果表明，在与环境有关的浓度下，Triton CG-110不太可能显着影响土壤中草甘膦的环境命运。
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